[PSUBS-MAILIST] 02 tank

[Sean T. Stevenson via Personal_Submersibles]

I should note that I do my own fills, usually from industrial O2 cylinders (CGA-540 fitting). I have several, so a straight transfill gets me pretty close to the large cylinder supply pressure. If I need to go higher, I seek the services of a dive shop with a booster pump, but then you pay dive shop prices for oxygen.

Sean


On April 20, 2017 1:18:32 PM MDT, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>Rick,
>I would approach the O2 supplier that you consider you will be getting
>most of your O2 from, & ask them the question.
>It would be no use cleaning yourself if they want some sort of
>certificate.
>I was advised by the local Padi dive centre to go with steel tanks, & I
>got them 
>to clean them & the first stage regulator. They were specific about
>what 
>1st stage regulators they could O2 clean. They put a nice big official
>looking
>oxygen sticker on the bottle & made me do an emergeny O2 providers
>course.
>The local gas supplier on the other hand was a bit clueless as to
>requirements
>& would only fill with a medical fitting.
>Alan
>
>
>Sent from my iPad
>
>> On 21/04/2017, at 5:47 AM, Rick Patton via Personal_Submersibles
><personal_submersibles at psubs.org> wrote:
>> 
>> Thanks Sean
>> 
>> Rick
>> 
>>> On Thu, Apr 20, 2017 at 7:44 AM, Sean T. Stevenson via
>Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>> Cylinder and valve will need to be oxygen cleaned and built or
>rebuit using viton o-rings and oxygen compatible lubricants; however,
>it is possible that it may come that way from the factory. Probably
>dependent on the manufacturer and retailer, the latter usually
>supplying newly purchased cylinders with an initial visual inspection
>sticker for recreational divers. With the prevalence of nitrox mixtures
>in recreational diving, it is becoming more commonplace to supply
>conformant cylinders, but check with your supplier. Oxygen cleaning is
>something you can do yourself, simply by using hydrocarbon free
>detergents, rebuild kits or o-rings which are O2 compatible (i.e.
>Viton), and O2 compatible lubricants such as Christolube.
>>> 
>>> Sean
>>> 
>>> 
>>>> On April 20, 2017 11:25:02 AM MDT, Rick Patton via
>Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>> I asked this question a while ago but didn't get a response so
>thought I'd try again.
>>>> Does anyone know if a new unused aluminum scuba tank would need to
>be 02 cleaned?
>>>> 
>>>> Rick
>>>> 
>>>> Personal_Submersibles mailing list
>>>> Personal_Submersibles at psubs.org
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>>> 
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